DM 15L keypress problems

[Dave Frederickson]

(07-14-2016 11:08 PM)emece67 Wrote:  A question, the ON+1/x string reports, after the battery voltage, the letters "RTC". What do they mean? Evenmore, there's a piezo buzzer inside. I suppose that RTC means "Real Time Clock" and that both it and the buzzer are used in the DM-41L incarnation of this hardware but, are any of them accessible from the 15L software?

Through the serial console: http://www.hpmuseum.org/forum/thread-564...l#pid50492

Dave